package jyj.springmvc.learning.service;

import jyj.springmvc.learning.entity.Product;

import java.util.List;

/**
 * @Author 老顽固小可爱
 * @Date 2022/12/12 11:04
 * @Version 1.0
 */
public interface ProductService {
    List<Product> getProductList();
    Product getProductById(Integer productId);
}
